#include<iostream>
#include<algorithm>
using namespace std;
namespace hcc
{
    class vector 
    {
        public:
            typedef int* itero
        private: 

    }
}
int main()
{
    std::vector<int> p;
    p.push_back(1);
    p.push_back(2);
    std::vector::iterator it=p.begin();
    for(auto e : it)
    {
        cout<<e<<" ";
    }
    cout<<endl;
    return 0;
}
